Table 1.
Major hemodynamic and cardiac contractile function variables in 2 MO and 14 MO WT and KO mice after burn complicated by sepsis
2 MO |
14 MO |
|||||||
---|---|---|---|---|---|---|---|---|
Sham |
B + S |
Sham |
B + S |
|||||
WT | KO | WT | KO | WT | KO | WT | KO | |
Steady-State | ||||||||
HR | 557 ± 8 | 562 ± 8 | 495 ± 7* | 539 ± 7† | 556 ± 10 | 564 ± 12 | 439 ± 21*# | 378 ± 20*#† |
MAP | 84 ± 2 | 88 ± 3 | 82 ± 3 | 84 ± 3 | 81 ± 4 | 87 ± 4 | 63 ± 3*# | 50 ± 4*#† |
CO | 9.3 ± 0.3 | 9.6 ± 0.6 | 4.9 ± 0.3* | 7.4 ± 0.3*† | 8.5 ± 0.6 | 8.4 ± 0.3 | 4.0 ± 0.3*# | 3.5 ± 0.4*#† |
SVR | 9.2 ± 0.3 | 9.6 ± 0.6 | 17.5 ± 1.0* | 11.6 ± 0.6*† | 9.9 ± 0.6 | 10.1 ± 0.6 | 17.2 ± 1.6* | 24.5 ± 4.9*# |
IVC Occlusion | ||||||||
ESPVR | 20.7 ± 2.8 | 22.6 ± 3.0 | 4.6 ± 0.8* | 6.9 ± 0.8*† | 17.5 ± 3.0 | 15.5 ± 2.6 | 2.8 ± 0.3*# | 1.9 ± 0.3*#† |
PRSW | 104 ± 5 | 108 ± 5 | 37 ± 2* | 77 ± 4*† | 92 ± 7 | 89 ± 9 | 30 ± 3*# | 22 ± 2*#† |
Emax | 39.7 ± 2.1 | 41.3 ± 2.3 | 18.0 ± 1.5* | 26.8 ± 2.9*† | 35.4 ± 2.4 | 34.8 ± 1.8 | 13.7 ± 1.5*# | 8.9 ± 0.9*#† |
HR: heart rate (beats per minute); MAP: mean arterial pressure (mmHg); CO: cardiac output (mL/min); SVR: systemic vascular resistance (mmHg/mL/min); ESPVR: end-systolic pressure volume relationship (mmHg/μL); PRSW: preload-recruitable stroke work (mmHg·μL); Emax: maximum elastance (mmHg/−L). Data are expressed as mean ± SEM.
p < 0.05 between sham and B+S
p < 0.05 between 2 MO and 14 MO mice, and
p < 0.05 between WT and KO.